TLDR Dyeing hair can help target and destroy hair follicles selectively.
The study investigated dye diffusion into human skin and hair follicles both in vitro and in vivo. Results demonstrated that dyeing could enhance the absorption coefficient of hair follicle tissue components, making it a potential method for selective photodestruction of hair follicles and surrounding tissues. The research also determined the strength and depth of hair follicle dyeing for various dyes.
10 citations
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April 2016 in “Research and reports in transdermal drug delivery” Transfollicular drug delivery is promising but needs more research to improve and understand it better.
2 citations
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July 2004 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” Near-infrared laser therapy with Indocyanine Green dye improves acne by reducing inflammation without side effects.
108 citations
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December 2003 in “Lasers in surgery and medicine” ICG-enhanced NIR laser therapy may be a promising acne treatment with improvement and no side effects.
2 citations
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July 2017 in “IEEE Photonics Journal” The study found that combining SHG and OCT effectively monitors skin wound healing in mice.
162 citations
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August 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The new "differential stripping" method effectively measures how much substance gets into hair follicles.
